A climbing shrub, quite glabrous except the inflorescences; young branches compressed, later on terete, greyish-brown. Leaves elliptic-lanceolate, gradually acuminate (acumen obtuse, up to 1/2 in. long), acute to subcuneate at the base, 2–2 1/2 in. long, 3/4–1 in. broad, almost papery; secondary nerves 6–8 on each side, oblique, fine; transverse veins at very acute angles with the secondary nerves; petiole 1 1/2–2 lin. long, slender. Panicles very lax, short, terminal and lateral, the terminal subcorymbiform about 1–1 1/4 in. long, the lower often reduced to 3–1-flowered cymes, adpressedly and minutely pubescent in all parts; branches filiform; bracts minute, lanceolate; pedicels very slender, up to 5 lin. long. Calyx subsemiglobose, 2/3– 3/4 lin. long, adpressedly pubescent, blackish; sepals rotundate-ovate; intracalycular glands 5, distinct, though small. Corolla funnel-shaped; tube subcampanulate, 2 1/2 lin. long, finely pubescent without; throat glabrous; Suprastaminal calli transversely linear, more or less united into a ring; lobes linear, subobtuse, 3 lin. long. Anthers 2 lin. long, pubescent on the back. Disc shallow, sinuate. Ovary-top black-pubescent. Style very short, obconic, minutely puberulous; stigma semiglobose-campanulate with a slender bifid apex.
